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Re: W2 directional coupler N-connector

Posted by Eric Swartz - WA6HHQ on Aug 07, 2012; 5:18pm
URL: http://elecraft.85.s1.nabble.com/W2-directional-coupler-N-connector-tp7560540p7560547.html

Please note that changing the connectors from SO-239s to N's will
uncalibrate the W2's directional coupler as you go higher in frequency -
especially on 432 MHz, leading to less accurate SWR indications. It may
also affect wattmeter accuracy.

We included additional compensation components in the coupler design to
cancel the reluctance of the SO-239s, flattening the coupler's frequency
response.

73,

Eric
---
www.elecraft.com

On 8/7/2012 9:45 AM, Ken G Kopp wrote:

> Yes Paul, the connectors on the sending units are easily changed.
> All mine have been changed using kits from Morse Express that
> come with nicely-done interfacing plates to compensate for the
> pattern change.  I've also changed the three antenna connectors
> on my K3 using these neat little kits.
>
> A caution ... take note of the TRANSMITTER and LOAD labels and
> the positioning of the cover.  You have a 50-50 chance of reversing
> the labeling if you reverse the cover.  The labeling is on the -cover-
> and not the unit itself.
>
> 73!
>
> Ken Kopp - K0PP
>
>   On Tue, Aug 7, 2012 at 4:12 PM,  <[hidden email]> wrote:
>> I am considering a small EME station on 432 Mhz. I would like to
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